@misc{prado2019measuring,
  title={Measuring relative abundances in the solar corona with optimised linear combinations of spectral lines},
  author={Natalia Zambrana Prado and Éric Buchlin},
  year={2019},
  eprint={1910.02886},
  archivePrefix={arXiv},
  primaryClass={astro-ph.SR},
  doi={10.1051/0004-6361/201834735},
  url={https://arxiv.org/abs/1910.02886}
}